Abnormal corpus callosum morphology Dysplastic corpus callosum UMLS:C0431369 Dysgenesis of corpus callosum Dysplasia and dysgenesis of the corpus callosum are nonspecific descriptions that imply defective development of the corpus callosum. The term dysplasia is applied when the morphology of the corpus callosum is altered as a congenital trait. For instance, the corpus callosum may be hump-shaped, kinked, or a striped corpus callosum that lacks an anatomically distinct genu and splenium. HP:0006996 Dysplasia of corpus callosum HP:0006989 dysgenesis of the corpus callosum